George:
All lawyers should have Mamiya C series TLRs

.
I was a student working in a camera store in the late 1970s when I bought my C330, with the standard 80mm 2.8 (black) lens.
I (and a legion of other photographers too) have shot lots of weddings with it - and if you can shoot weddings you can shoot anything with a camera (unless you need movements).
I've had my camera and lenses serviced
once since then (admittedly, I acquired the other three lenses [55mm, 65mm and 135mm] at various times, in the years since). That service was preventative only, not because of any current problems.
Four or five years ago, I found, and my wife and some friends gave me as a birthday present, a used Mamiya C220 body as well. It was and is in mint condition. It was ridiculously cheap, and it was purchased from a store, with a warranty!
The cameras and lenses are relatively simple, and anyone who can service manual cameras, can most likely service them. Even Mamiya still services many of them.
In recent months, I've been playing more with my Mamiya 645 SLRs, but the TLRs are patient.
You can carry a body and three lenses in a very small camera case (for MF).
If you use flash, the leaf shutters in every lens are wonderful.
The C330 series is better for fast action (e.g. weddings) because the film advance and shutter cocking processes are interconnected, but the C220 is lighter, slightly smaller, and simpler.
If you look at my gallery photos, the photo of the "ropes" was shot with my C220. I was able to take it, two lenses, a small flash and some film with me that day in a camera bag that is probably too small to use with a Nikon F5.
If you want to know more, Graham Patterson's website (he posts regularly on APUG) is a great resource:
Dead Link Removed
Personally, I use a prism finder a lot (it's better for handheld use at weddings) but it certainly isn't necessary, and the waistlevel finder on either body is a wonderful combination.
As for parallax, it really doesn't matter much, unless you are shooting at close distances. I have two paramenders - the accessory developed by Mamiya to deal with the problem - the first is an old, simple one, usable on any tripod, while the second is a rare one - a Mamiya tripod head, with paramender built in.
Sanders (who of course is a lawyer too

) is right - the Rollieflexes are wonderful cameras, especially if you are fortunate enough to have a Tele Rollieflex as well as the standard model. Personally, however, I prefer the option of the interchangeable lenses.
if you have questions, don't hesitate to ask.
Matt